Complete Overhauling / Repairing of 7.5 MLD Rapid Sand Gravity Filter plant including Designing and SITC of manifold/ lateral system at Matela Under Almora Urban Pumping Water Supply Scheme

Rates for Complete Overhauling / Repairing of 7.5 MLD Rapid Sand Gravity Filter plant including Designing & SITC of manifold/ lateral system at Matela Under Almora Urban Pumping Water Supply Scheme

Repairing and Renovation work for Filter bed , Flocculation tank and Hopper bottom tank-

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Plastering with cement mortar (1:4), 15 mm thick on brickwork in substructure as per technical specification Clauses 613.4 & 1204.

Repair to plaster of thickness 12mm to 20 mm in patches of area 2.5sqm and under, including cutting the patch in proper shape, rakingout joints and preparing plastering the wall surface with white cementbased polymer modified self curing mortar, including disposal of rubbish, all complete as per the direction of Engineer-In-Charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size).

Providing and laying reinforced cement concrete in superstructure as per drawing and technical specifications Clauses 800, 1205.4 and 1205.5 For nominal mix 1:2:4 Height upto 5m.

Supplying, fitting, and placing HYSD bar reinforcement in superstructure complete as per drawing and technical specifications Clauses 1002, 1010 and 1202.

Brick masonry work in cement mortar 1:4 in foundation complete excluding pointing and plastering, as per drawing and technical specifications Sub- Item of Mortar Cement mortar1:4 (1cement :4 sand).

Dismantling Repairing and Similar Fabrication work of MS channel , Grating Back wash tank and Chaber cover -

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead.

SS work welded built of section /framed works including cutting fixing in position applying a priming code of approved steel primer using steel its as required in gratings, frames, guard bar, ladder, railing gates and similar works.

Dismantling and Replacement of Desfunctional Piping system and Sluice Valve

Dismantling of C.I. sluice valve including stacking of useful materials within a lead of 50 metres.Up to 150 mm diameter (80mm , 100mm and 150 mm )

Dismantling of C.I. sluice valve including stacking of useful materials within a lead of 50 metres. Above 150 mm diameter (200mm and 250mm)

Supply and fixing of CI/DF Non Rising Sluice valve Confirming to IS: 14846-2000 having following size 80 mm

200 mm dia, 5.6 mm thick MS ERW Pipe For replacing the damaged portions of existing inlet & outlet pipes.

Complete Renovation of Manifold and Lateral System

Designing Supplying Installation Testing and Commissioning of Manifold and Lateral system with air compressor piping system complete for rapid sand gravity filter plant considering rate of filteration is 2.5 Million liter in 20 Hour including supply of all material labour and T&P etc complete as required at site.

Complete Renovation of Settling tank

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of Asbestos cement sheet.

Supply of PVC Tube settler for Hopper Bottom Type primary settling tank and Hopper Bottom Type secondary type settling tank and Fitting it to an inclination angle of 60 degree including supply of all necessary arrangement like providing of grating arrangement to fix these tube settler and required material for fixing of these tube settler like with polymer coated J, or L hooks,bolts and nuts 8 mm dia. G.I. plain and bitumen washers or with self drilling fastener and EPDM washers etc. complete including cutting sheets to size and shape wherever required.

Painting and Tiling work

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer’s specifications including appropriate priming coat, preparation of surface, etc. complete.-On concrete work.

Painting with black anti-corrosive bitumastic paint of approved brand and manufacture to give an even shade : Two or more coats on new work.

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.For thickness of tiles 10 mm to 25 mm.

Providing and laying matt finished vitrified tile of size 300x300x9.8mm having with water absorption less than 0.5% and conforming to IS:15622 of approved make in all colours and shades in for outdoor floors such as footpath, court yard, multi modals location etc., laid on 20mm thick base of cement mortar 1:4 (1 cement : 4 coarse sand) in all shapes & patterns including grouting the joints with white cement mixed with matching pigments etc. complete as per direction of Engineer-in-Charge.

Leak proofing

Providing and inserting 12mm dia galvanised steel injection nipple in honey comb area and along crack line including drilling of holes of required diametre (20mm to 30mm) up to depth from 30mm to 80mm at required spacing and making the hole & crack dust free by blowing compressed air, sealing the distance between injection nipple with adhesive chemical of approved make and allow it to cure complete as per direction of Engineer-In-Charge.

Providing and laying Slurry Seal consisting of a mixture of fine aggregates,portland cement filler, bituminous emulsion and water on a road surface including cleaning of surface, mixing of slurry seal in a suitable mobile plant, laying and compacting to provide even riding surface as per MoRTH specification Slurry Seal 5 mm thickness.

Filter Media and Related work -

Taking out , cleaning and Refilling (i.e 30 % of the excavated -washed filter media ) of existing filter media / supporting media / gravells from filters bed as per direction of engineer in charge including supply of all material labour T&P etc complete as required at site

Supply and spreading of supporting media into sand filter bed as per standard specifications complete in all respect as per IS Code 8419.

Supply Filling and packing of filter media into filter bed as per standard specifications complete in all respect as per IS Code 8419 (Part I) . i) Effective size of the sand shall be 0.45 to 0.70mm ii) Uniformity coefficient shall not be more than 1.7 nor less than 1.3 iii) Sand shall be hard resistant quartz and free from clay dust roots and other impurities. iv) It should contain less than 2% lime and magnesium calculated as carbunates and soluble in dilute hydrochloric acid 24 hours at a temperature of 700 F . v) Silica contents should not be less than 90 % . vi) Specific gravity shall be in the range of 2.55 to 2.65 vii) Wearing loss shall not be more than 3% ignition loss should not exceed 0.7 % by weight . viii) Soluble fraction in hydrochloric acid shall not exceed 5 % by weight .